Alphonza is an uncommon and unique given name of Latin origin, derived from the ancient Roman family name "Alphonsus". This name was popularized during medieval times by several prominent figures who bore it, including King Alfonso X of Castile and his grandson, King Alfonso XI. The name Alphonza is a variant spelling that adds a distinctive touch while retaining its historical roots. It has been more commonly used as a female given name in recent years, although its use is still relatively rare.
"The name Alphonza experienced varying popularity throughout the 20th century, peaking in the late 1940s and early 1950s with over 25 births recorded in 1948. However, it appears to have declined significantly by the late 1970s and early 1980s, with fewer than 10 births per year."